Related Party Transactions (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011 years months days	Sep. 30, 2010	Dec. 31, 2010
Related Party Transactions [Abstract]
Date of note payable with affiliate			Feb. 09, 2011
Original note payable to affiliate	$ 121,000,000		$ 121,000,000
Loan maturity date			Aug. 09, 2011
Spread over LIBOR for note payable	0.85%		0.85%
Interest expense, related party	138,000		664,000
Administrative service costs	110,000	112,000	331,000	431,000
Royalty-free license agreement written notice of termination period minimum (in months)			6
Property management contract term (in years)			seven
Extended property management contract period (in years)			one
Management fee revenue	170,000	165,000	517,000	501,000
Number of PSB properties Public Storage provides property management services			2
Property management contract written notice of termination period minimum (in days)			60
Management fee expenses	13,000	12,000	39,000	28,000
Due to related parties	22,000		22,000
Due from related parties					$ 530,000